feat(RAG):add MRR and HitRate retriever metrics.

[Aries-ckt]

Description

• add MRR(Mean Reciprocal Rank) retriever evaluation metric
• add HitRate retriever evaluation metric

How Has This Been Tested?

python examples/rag/retriever_evaluation_example.py

Metric: RetrieverHitRateMetric
Question: what is awel talk about
Score: 1.0
Metric: RetrieverMRRMetric
Question: what is awel talk about
Score: 1.0
Metric: RetrieverSimilarityMetric
Question: what is awel talk about
Score: 0.9740950570493465

Snapshots:

Include snapshots for easier review.

Checklist:

• My code follows the style guidelines of this project
• I have already rebased the commits and make the commit message conform to the project standard.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules

[csunny]

r+

[yyhhyyyyyy]

Test passed~

Metric: RetrieverHitRateMetric
Question: what is awel talk about
Score: 0.0
Metric: RetrieverMRRMetric
Question: what is awel talk about
Score: 0.0
Metric: RetrieverSimilarityMetric
Question: what is awel talk about
Score: 0.8598387491988569

[fangyinc]

r+.